1. Fused pyrimidines: the heterocycle of diverse biological and pharmacological significance;Dinakaran;Der Pharma Chem.,2012
2. Synthesis, chemistry, and biological properties of thienopyrimidines;Varvounis,1996
3. The chemistry of thienopyrimidines;Litvinov,2006
4. N. Umeda, M. Takada, S. Ikeyama, K. Ichikawa, Thienopyrimidine compounds and their salts and process for preparation of both, Google Patents, 2003.
5. J.S. De, L.J. Gao, P. Herdewijn, J. Herman, M. Jang, P. Leyssen, T. Louat, J. Neyts, C. Pannecouque, Antiviral activity of novel bicyclic heterocycles, Google Patents, 2011.